perfidious
per·fid·i·ous
adj \(ˌ)pər-ˈfi-dē-əs\Definition of PERFIDIOUS
See Examples of PERFIDIOUS
- We were betrayed by a perfidious ally.
- <a perfidious campaign worker revealed the senator's strategy to his leading rival for the nomination>
First Known Use of PERFIDIOUS
1572
Related to PERFIDIOUS
Synonyms: disloyal, false, fickle, inconstant, faithless, recreant, traitorous, treacherous, unfaithful, untrue
Related Words: irresponsible, trustless, undependable, unreliable, untrustworthy; faltering, hesitant, vacillating, wavering; dubious, irresolute, uncertain; apathetic, dispassionate, uninterested
Near Antonyms: dependable, dutiful, reliable, responsible, solid, tried, tried-and-true, trustable, trustworthy, trusty; unfaltering, unhesitating, unwavering; determined, intent, resolute; confirmed, dyed-in-the-wool, inveterate, sworn; ardent, avid, enthusiastic, fervent, fervid, impassioned, passionate
See Synonym Discussion at faithless
Rhymes with PERFIDIOUS
Learn More About PERFIDIOUS
Browse
Next Word in the Dictionary: perfidy
Previous Word in the Dictionary: perficient
All Words Near: perfidious
Previous Word in the Dictionary: perficient
All Words Near: perfidious
Seen & Heard 
What made you want to look up perfidious? Please tell us where you read or heard it (including the quote, if possible).
